[Stress Relief] This sleep aid machine is the latest sleep tool to help people with sleep deprivation relieve stress, relieve anxiety and depression, improve sleep quality. [Handheld Design] This sleep aid machine is a simple design, with silicone material, in line with the design of people's hands. Lightweight and portable. [2 Operating Modes] There are 2 operating modes available; at the bottom, to switch the sleep mode (relax) or stimulation mode (active), you can select the frequency that suits your body. [CES Pulse Design] CES transcranial microcurrent can enhance the brain's ALPHA electric waves, increase the secretion of neurotransmitters purely physical role to help fast sleep, get healthier quality sleep. [Automatically Shut Down] The pro measurement sleep aid and human skin contact state disconnected contact 30 seconds after the machine automatically shut down, sleep more at ease. Product description Parts List: 1 x Sleep Aid Machine 1 x USB Cable 1 x Bilingual Instruction Manual Name: Portable Sleep Aid Machine Color(optional): Blue, white Product size: 12 * 5cm / 4.7 * 1.96 inches Product material: Silicone How to Use: 1. At the bottom to switch the sleep mode (relax) or stimulation mode (active) 2. The electrode bulge against the palm of your hand, palm touching the periphery of the bulge electrode, the formation of microcurrent circuit. 3. Open the side knob, gradually adjust to their own adaptation to feel comfortable gear. Note: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2.Please allow slight dimension difference due to different manual measurement. Thank you for your understanding.